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The Guardian - UK
The Guardian - UK
Technology
Dan Milmo and agency

Anthropic did not breach copyright when training AI on books without permission, court rules

A smartphone screen says 'Welcome to Claude'
Anthropic used books by several authors to train its Claude large language models without permission Photograph: Ted Hsu/Alamy

A US judge has ruled that a tech company’s use of books to train its artificial intelligence system – without permission of the authors – did not breach copyright law.

A federal judge in San Francisco said Anthropic made “fair use” of books by the writers Andrea Bartz, Charles Graeber and Kirk Wallace Johnson to train its Claude large language model (LLM).

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